Working Hours More Than 8 Hours

my office working hours is 9 hours 30 minutes and laws says that it note more than 8 hours.
can you please suggest me that how it could be change

8 Hours will be spread over 9.30 hours.
It is not possible to keep working hours for 8 hours w/o any breaks.
Secondly not connected with query.
Please start your sentence with capital letter and avoid spelling mistakes not is not NOTE.
Please focus on correct grammar also.

As nathrao has said, your query is not complete.
While standard shift time is 8 hours, the law says that anyone working more than 9 hours a day is entitled to overtime. That means your employer is allowed to have a 9'hour work time. Further, the work hours excludes any breaks. So if you have 30 min lunch time, your working hours is actually 9 hours.
In any case, what do you mean by how it could be changed ?
Go and tell your employer that he is out of line with the law. Tell him to reduce the work hours. Or you can go and complain to the labour commissioner.
Of course, in either case, the first thing the employer will do is to terminate your services. So you better be ready for that.

Sir,
Is the allowed work hours per day 8 hours excluding break or 9 hours without the breaks ?
I think the acts allow 9 hours per day.

Under factories Act and also under Shops and Establishment Acts,it can be 9 hours subject to 48 hours working during the week. If you are HR person, you are expected to be well equipped with employer's and employees legal rights .